diff --git a/[refs] b/[refs]
index 01eb1b5f3c87..2851181871b1 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 95e904c7da715aa2dbfb595da66b63de37a0bb04
+refs/heads/master: 49307fd6f72bdd68cc2bd23e7da0bcfecf8087c9
diff --git a/trunk/kernel/sched.c b/trunk/kernel/sched.c
index 04228524d160..320e9a43d4cc 100644
--- a/trunk/kernel/sched.c
+++ b/trunk/kernel/sched.c
@@ -8350,7 +8350,7 @@ static unsigned long to_ratio(u64 period, u64 runtime)
 #ifdef CONFIG_CGROUP_SCHED
 static int __rt_schedulable(struct task_group *tg, u64 period, u64 runtime)
 {
-	struct task_group *tgi, *parent = tg->parent;
+	struct task_group *tgi, *parent = tg ? tg->parent : NULL;
 	unsigned long total = 0;
 
 	if (!parent) {